临界点

Eta Carinae, a star between 100 and 150 more massive than the Sun, is near a point of unstable equilibrium where the star's gravity is almost balanced by the outward pressure of the intense radiation generated in the nuclear furnace.

Eta Carinae，质量是太阳的100到150倍，这是一个不稳定平衡的临界点，也就是恒星的引力通常靠核反应堆所产生的强烈辐射制造的外层气压来平衡的。

Key words: applied mathematics; forth-order difference equation; discrete variational principles; periodic solution

关键 词：应用数学；四阶差分方程；临界点理论；周期解

Second type of FL~Z〓 curve is set up for those specimens which were not ground after peening.

在三个阶段之间有两个临界点，它们可以根据本文提出的"10~20D准则"确定。

Based on the Flory-Huggins theory, the binodal, spinodal and critical point equations for polymer-solvent-nonsolvent system are derived in detail.

以Flory-Huggins理论为基础，详细推导了聚合物－溶剂－非溶剂三元聚合物成膜体系的双节线、旋节线和临界点求解方程，提供了方程的求解方法。

At that point one is considered to be in a "catabolic" state.

如果一个人开始减少他/她的卡路里摄入量，最终会达到一个临界点，在该点，身体无法给肌肉提供足够的能量。

Our calculated results show that the relative stability of the isomers depends on the level of theory used: in the framework of DFT, Au10 trends to form planar structures, while the MP2 calculations show that the three-dimensional isomers are energetically more favorable. Based on the present results, Au10 may be conjecturably a critical species of gold clusters which bridges the planar structures and three-dimensional ones.

计算结果表明Au10团簇异构体的相对稳定性明显依赖所使用的理论方法和泛函，密度泛函结果显示Au10倾向于采用平面结构，且不同的泛函给出异构体的相对稳定性次序也不相同，而MP2计算则显示三维空间结构的Au10团簇更稳定， Au10可能是金团簇从二维结构到三维结构演化的一个临界点。

By dilatometric change referencing microscopic test and hardness measurement, the critical point at Ac1, Ac3 and Ms of 27CrMo27S steel was determined in Gleeble-3800 thermal mechanical simulator, By measuring the different expanding curves of CCT in different cooling rate, CCT diagram was obtained.

利用膨胀法结合金相-硬度法，在Gleeble-3800热模拟机上测定了27CrMo27S钢的临界点Ac1、Ac3以及Ms；测定了该钢在不同冷却速度下连续冷却时的膨胀曲线，获得了连续冷却转变曲线；研究了冷却速度对该钢组织及硬度的影响。

By dilatometric change and microscopic test, the critical point at Ac1、Ar1、Ac3 and Ar3 of ML40Cr steel was detemined in Gleeble-3800 the thermal-mechanical simulator. The continuous cooling transformation diagram of ML40Cr steel was obtained by measuring the expanding curves of different cooling rates. The mechanical property and transformation of austenite were analyzed. The proper range of control cooling rate about ML40Cr cold heading steel was found. All those provide the reference for productive practice to develop cold heading steel.

在Gleeble-380热模拟试验机上采用热膨胀法－金相法测定了ML40Cr钢的临界点Ac1、Ar1、Ac3、Ar3，同时测定了在不同冷却速度下过冷奥氏体连续冷却时的膨胀曲线，获得了该钢的连续冷却转变曲线；研究了ML40Cr连续转变冷却过程中奥氏体转变过程和转变产物的组织和性能，初步确定了ML40Cr盘条的控制冷却范围，为冷镦钢ML40Cr盘条的开发提供了参考依据。

The temperature affects partition of dipotassium glycyrrhizinat but the effect is minor. On the same time pH has major impact on the partition of dipotassium glycyrrhizinat. The coefficient is eight times higher when pH reaches 2. The improved Diamond-Hsu model can be used to correlate the partition coefficient of dipotassium glycyrrhizinat in the system of water/ethanol/isobutanol. The result of Infrared and TG analysis indicate the extraction product has the same characteristic features with dipotassium glycyrrhizinat.

结果表明：体系的初始点越靠近临界点，甘草酸二钾的分配系数越大；温度对甘草酸二钾的分配有～定的影响，但分配系数随温度变化不大；pH值对甘草酸二钾的分配有较大的影响，在pH=2附近，分配系数高出其他位置达8倍；改进的Diamond-Hsu模型可以用于关联甘草酸二钾在水+乙醇+异丁醇体系中的分配系数；红外和TG分析结果表明萃取产物与甘草酸二钾样品的性质特征相同。

The bubble point, dew point and critical point were determined for binary mixtures of 1 pentene and 1 hexene, and thus the problem that critical parameters are evaluated without accurate and reliable theory is solved.

测定了1－戊烯－1－己烯二元混合物在不同组成下的泡点、露点及临界点，解决了没有准确可靠的理论估算临界数据的问题。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。